"The United States Army Air Force (USAAF) used the aerodrome at Charleville in southwestern Queensland as a heavy bomber transit base during World War II. The operational precinct, including the original QANTAS hanger, the tower, meteorological (met) office, refuelling and other facilities were located south of Warrego Highway near the town racecourse (Figure 1).

Astonishingly, although Charleville is one of 112 ‘high quality’ Australian Climate Observations Reference Network – Surface Air Temperature (ACORN-SAT) sites used to monitor long term temperature trends, the Bureau of Meteorology (BoM) did not know where their original office was or that the instrument enclosure and cloud-base searchlight was located 160 m southwest at Latitude ‑26.4103o, Longitude 146.2561o.

Assertions that “The Bureau’s methods have been extensively peer-reviewed and found to be among the best in the world”; and that “the community can have confidence the Bureau is providing an accurate estimate of Australia’s true temperature trend” are demonstrably not true. In 2011, ‘World-leading, expert’ peer reviewers did not evaluate the integrity of metadata used to make adjustments to ACORN-SAT data or investigate the soundness of individual datasets. BoM has also misrepresented the usefulness of temperatures observed under variable conditions using a range of instruments at different locations, to accurately measure trend and changes in the climate."

"Headed by a case study of data for Mungindi Post Office, the ten sites used by BoM to homogenise Charleville Tmax for a change in 1996 (probably related to a new AWS replacing the Micromac before becoming the primary instrument on 1 November) were also analysed.

Using highly correlated comparator datasets to make adjustments is fatally flawed. Data for Mungindi and the nine other mostly manual datasets owed their correlation with Charleville to embedded parallel faults – alignment of screen and site changes, site moves, watering, the change to the AWS and small screen at Longreach. Like for Charleville, unbiased analysis found no trend or change at any sites that was attributable to the climate.

Using faulty (correlated) data to correct faults in ACORN-SAT data has no scientific or statistical merit and should be abandoned."

http://www.bomwatch.com.au/bureau-of-meterology/charleville-queensland/

"A glaring problem with homogenisation at Charleville involves the word ‘nearby’. ‘Nearby’ as it applies to Charleville is not just another town or weather station ten or twenty kilometres away. The ‘nearby’ stations are hundreds of kilometres away.

The Report lists distances as: Mungindi – 390 km away. By way of comparison, the distance between London and Paris is 344 km. Would it be statistically sound to homogenise daily temperature readings in Paris by reference to what the temperature was that day in London? It is also notable that Mungindi is 2.46 degrees of latitude South from Charleville.

The others are: Blackall – 234 km distant: Bollon Post Office – 216 km: Injune – 238 km: Longreach – 238 km: Cunnamulla – 192  km: Collarenebri – 414 km: Surat – 291 km: Tambo – 196 km and Mitchell – 171 km.   "

https://wattsupwiththat.com/2021/10/14/aussie-met-bureau-making-up-13-years-of-m...

The figures in the original are at -

http://www.bomwatch.com.au/wp-content/uploads/2021/02/BOM-Charleville-Paper-FINA...

For those interested.